[Feature] Prize support for Challenges

[b9aurav]

This pull request is for the addition of the challenge prizes feature [fixes #3893]. This feature will allow hosts to offer rewards to the top-performing participants in a challenge.

To add prizes to a challenge:

1. Define the prizes configuration in the challenge configuration file. The prizes should be specified in the following format:

prizes:
  - rank: 1
    amount: '1000USD'
  - rank: 2
    amount: '500USD'
  - rank: 3
    amount: '100USD'

# It also allows amount in decimal format with any three-letter currency (e.g. '100.50EUR', '10000INR').

2. The validation will check that the rank values are unique and amount values are formatted correctly.
3. If the validation passes, the has_prizes attribute in the challenge model will be set to True.
   • The prizes will be displayed in a separate tab section on the challenge details page. Participants will be able to see the rank and prize amount.

• If host do not want to add prizes to the challenge, simply remove the prizes from challenge configuration file. In this case, the has_prizes attribute will remain False, and the prize tab section will be removed from the challenge details page.

Here's Screenshot of hosted challenge with above 'prizes' configuration:

To implement this feature,

• Added ChallengePrize model and serializer to handle prizes in challenges.
• Added has_prizes attribute to the Challenge model class.
• Modified create_or_update_github_challenge method to create and update prize objects from configuration file.
• Added configuration file validation for direct zip upload.
• Added config value validation to ensure appropriate values in challenge configuration.
• Added get_prizes_by_challenge method and URL to retrieve prize objects via API call.
• Added API Call to get prize data of a challenge in the backend.
• Added frontend page route and display file for the Prize section.

[codecov-commenter]

Codecov Report

Merging #3906 (a0f23e0) into master (96968d6) will decrease coverage by 1.81%. The diff coverage is 34.77%.

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@@            Coverage Diff             @@
##           master    #3906      +/-   ##
==========================================
- Coverage   72.93%   71.12%   -1.81%     
==========================================
  Files          83       20      -63     
  Lines        5368     3276    -2092     
==========================================
- Hits         3915     2330    -1585     
+ Misses       1453      946     -507     

Impacted Files	Coverage Δ
frontend/src/js/controllers/authCtrl.js	53.91% <6.38%> (-12.95%)	:arrow_down:
frontend/src/js/controllers/permissionCtrl.js	36.36% <22.22%> (-63.64%)	:arrow_down:
frontend/src/js/controllers/challengeCtrl.js	62.79% <32.25%> (-10.91%)	:arrow_down:
frontend/src/js/controllers/updateProfileCtrl.js	82.55% <44.44%> (-10.30%)	:arrow_down:
frontend/src/js/controllers/profileCtrl.js	80.89% <45.45%> (-11.96%)	:arrow_down:
...ntend/src/js/controllers/challengeHostTeamsCtrl.js	70.50% <66.66%> (-1.18%)	:arrow_down:
frontend/src/js/controllers/teamsCtrl.js	71.17% <75.00%> (ø)
frontend/src/js/controllers/challengeListCtrl.js	95.74% <80.00%> (+1.06%)	:arrow_up:
frontend/src/js/controllers/ChallengeInviteCtrl.js	100.00% <100.00%> (ø)
frontend/src/js/controllers/SubmissionFilesCtrl.js	95.45% <100.00%> (ø)
... and 5 more

... and 63 files with indirect coverage changes

Impacted Files	Coverage Δ
frontend/src/js/controllers/authCtrl.js	53.91% <6.38%> (-12.95%)	:arrow_down:
frontend/src/js/controllers/permissionCtrl.js	36.36% <22.22%> (-63.64%)	:arrow_down:
frontend/src/js/controllers/challengeCtrl.js	62.79% <32.25%> (-10.91%)	:arrow_down:
frontend/src/js/controllers/updateProfileCtrl.js	82.55% <44.44%> (-10.30%)	:arrow_down:
frontend/src/js/controllers/profileCtrl.js	80.89% <45.45%> (-11.96%)	:arrow_down:
...ntend/src/js/controllers/challengeHostTeamsCtrl.js	70.50% <66.66%> (-1.18%)	:arrow_down:
frontend/src/js/controllers/teamsCtrl.js	71.17% <75.00%> (ø)
frontend/src/js/controllers/challengeListCtrl.js	95.74% <80.00%> (+1.06%)	:arrow_up:
frontend/src/js/controllers/ChallengeInviteCtrl.js	100.00% <100.00%> (ø)
frontend/src/js/controllers/SubmissionFilesCtrl.js	95.45% <100.00%> (ø)
... and 5 more

... and 63 files with indirect coverage changes

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